She added: “They were so brave because there were times when we had to say, ‘we don't have any more pain medication right now.

“’We're going to just have to have you focus and breathe for me, hold my hand, keep talking to me’.”

Katie is thought to have been concentrating mostly on Jennifer.

She said: “Her significant other was one of the men that were not able to make it out.

“She just kept screaming his name over and over, wanting to know what happened.”

The 27-year-old was the first of the victims of the fatal crash to be pictured

Becky tragically lost her life when the chopper came down in the Grand Canyon

The surviving passengers were eventually airlifted to University Medical Centre in Las Vegas, Nevada, along with pilot Scott Booth, 42.

Reverend David Hill, the brothers’ father, said: “The two brothers loved each other and were very close, and so our misfortune is their support - because they went together, and I will thank God every day for them.”

Holding back tears, he went on: “They were truly loved by lots of people. They were incredibly close, and as parents we feel blessed to have had them, but a light has truly gone out.

“Six of them went out for my son’s 30th birthday. They had saved for a year to go, and it was a helicopter accident. We are absolutely devastated.”

Teddy Fujimoto

Rescuers took nearly nine hours to reach the crash site, in a deep gorge on the Hualapai Native American reservation

Teddy Fujimoto

Rescuers battle their way down the narrow revine to help free the survivors

Friends paid tribute to Stuart’s girlfriend Becky, 27, who described her as a “lovely person inside and out”.

Becky worked in a pet shop in Worthing before last year heading out to Australia for a travelling stint.

In her profile on her work website, she described her love for animals and her dream of becoming a veterinary nurse.

She said: “I also love to travel the world and explore what is out there beyond good old Worthing.”

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Papillon Grand Canyon Helicopters, operated from Boulder City, Nevada, has had at least three other fatal crashes in the last 20 years.

That includes a 2001 disaster near the Canyon when a tour pilot lost control of the chopper, killing himself and five others.

And it has now been claimed that the crash happened on Native American tribal land where there are fewer regulations governing flight tours, the Chicago Tribune reports.

A Foreign Office spokesperson said: "We are providing support to the families of six British visitors involved in a helicopter accident at the Grand Canyon on February 10, and we are in close contact with the US emergency services."

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